27827078399 has 2 divisors, whose sum is σ = 27827078400. Its totient is φ = 27827078398.

The previous prime is 27827078381. The next prime is 27827078413. The reversal of 27827078399 is 99387072872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27827078399 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27827078339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13913539199 + 13913539200.

It is an arithmetic number, because the mean of its divisors is an integer number (13913539200).

Almost surely, 2^27827078399 is an apocalyptic number.

27827078399 is a deficient number, since it is larger than the sum of its proper divisors (1).

27827078399 is an equidigital number, since it uses as much as digits as its factorization.

27827078399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21337344, while the sum is 62.

The spelling of 27827078399 in words is "twenty-seven billion, eight hundred twenty-seven million, seventy-eight thousand, three hundred ninety-nine".